diff --git a/ohpc-instance/main.tf b/ohpc-instance/main.tf
index a1ce2480dc0d90545a9d49bd9b4fa02903a178c0..44b80478e5f4f9a4a77ccc6b44345ceb8b759c62 100644
--- a/ohpc-instance/main.tf
+++ b/ohpc-instance/main.tf
@@ -7,6 +7,13 @@ required_version = ">= 0.14.0"
       version = "~> 1.42.0"
     }
   }
+  backend "s3" {
+    bucket         = "my-terraform-state-bucket"
+    key            = "state/terraform.tfstate"
+    region         = "us-east-1"
+    encrypt        = true
+    dynamodb_table = "my-terraform-lock-table"
+  }
 }
 
 
@@ -84,7 +91,7 @@ resource "openstack_compute_volume_attach_v2" "attach_prod_volume" {
 
 resource "openstack_compute_volume_attach_v2" "attach_prod_queue_volume" {
   instance_id = openstack_compute_instance_v2.ohpc.id
-  volume_id   = var.xdmod_queue_data_volume
+  volume_id   = var.prod_volume_id
 }
 output "xdmod_instance_id" {
   value = openstack_compute_instance_v2.ohpc.id